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All results from a given calculation for C3H4N2 (1H-Pyrazole)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-224.839600
Energy at 298.15K-224.845835
Nuclear repulsion energy 
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3952 3574 90.92      
2 A' 3437 3109 3.13      
3 A' 3418 3091 10.02      
4 A' 3404 3079 9.19      
5 A' 1743 1576 10.40      
6 A' 1637 1480 12.70      
7 A' 1542 1394 25.53      
8 A' 1540 1393 10.58      
9 A' 1404 1269 3.36      
10 A' 1281 1159 3.10      
11 A' 1226 1109 27.82      
12 A' 1139 1030 55.77      
13 A' 1123 1016 0.27      
14 A' 1019 921 6.44      
15 A' 1001 906 13.94      
16 A" 1014 917 3.84      
17 A" 977 883 3.33      
18 A" 845 764 108.28      
19 A" 748 677 23.34      
20 A" 689 623 0.16      
21 A" 555 502 91.59      

Unscaled Zero Point Vibrational Energy (zpe) 16846.0 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 15235.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-311G*
ABC
0.32991 0.32198 0.16295

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.080 0.721 0.000
C2 1.096 0.301 0.000
H3 1.255 -1.880 0.000
C4 0.662 -0.990 0.000
H5 -1.479 -1.655 0.000
C6 -0.747 -0.873 0.000
N7 -1.125 0.371 0.000
H8 -0.046 2.063 0.000
N9 0.000 1.075 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07002.72912.22234.27953.24553.22472.51432.1101
C21.07002.18751.36253.23392.18522.22242.09941.3414
H32.72912.18751.06922.74332.24103.27614.15243.2107
C42.22231.36251.06922.24221.41412.24683.13442.1689
H54.27953.23392.74332.24221.07122.05633.98473.1049
C63.24552.18522.24101.41411.07121.30013.01862.0863
N73.22472.22243.27612.24682.05631.30012.00731.3276
H82.51432.09944.15243.13443.98473.01862.00730.9892
N92.11011.34143.21072.16893.10492.08631.32760.9892

picture of 1H-Pyrazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 131.641 H1 C2 N9 121.696
C2 C4 H3 127.790 C2 C4 C6 103.798
C2 N9 N7 112.744 C2 N9 H8 127.881
H3 C4 C6 128.413 C4 C2 N9 106.663
C4 C6 H5 128.364 C4 C6 N7 111.683
H5 C6 N7 119.954 C6 N7 N9 105.112
N7 N9 H8 119.375
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.246 0.143   0.176
2 C 0.082 -0.069   -0.087
3 H 0.220 0.152   0.209
4 C -0.498 -0.313   -0.396
5 H 0.225 0.081   0.127
6 C 0.023 0.224   0.168
7 N -0.231 -0.496   -0.466
8 H 0.386 0.289   0.324
9 N -0.453 -0.011   -0.056


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.243 0.866 0.000 2.405
CHELPG        
AIM        
ESP 2.241 0.855 0.000 2.399


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.518 2.836 0.000
y 2.836 -21.996 0.000
z 0.000 0.000 -32.349
Traceless
 xyz
x -2.345 2.836 0.000
y 2.836 8.938 0.000
z 0.000 0.000 -6.592
Polar
3z2-r2-13.185
x2-y2-7.522
xy2.836
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.535 0.260 0.000
y 0.260 6.994 0.000
z 0.000 0.000 3.143


<r2> (average value of r2) Å2
<r2> 78.706
(<r2>)1/2 8.872